在NC数控指令中，全程结束为：（）

A.G40
B.G41
C.G42
D.G02

A. Analysis->Signal Layer Checks
B. DFM->Optimization->Signal Layer Opt
C. Analysis->Silk Screen Checks
D. Analysis ->Board-Drill Checks

A. DFM->Optimization->Solder Paste Opt
B. Analysis->Solder Mask Checks
C. Analysis->Silk Screen Checks
D. DFM->Optimization->Solder Mask Repair